Currently, I have /etc/fstab configured to mount a single network file server (FS1). I want to failover to FS2 in the case that FS1 is unresponsive. It doesn't seem that I can do that in /etc/fstab, but it looks like autofs may be able to be configured with failover options.
I want to know that I am doing this correctly before I test it, because this change will take place in a production environment. Would I be able to configure my auto.fs file with the following code (specifying two hosts), or do I need to do it a different way?
Thanks in advance.
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
I am running Cent OS.
I found some info on mounting NFS while specifying failovers using the "mount" command:
http://docs.hp.com/en/B103
I could run a script at startup which uses the command from the above link, I just thought there might be a way to do this using /etc/fstab or automount.
the fstab format has a column for specifying options... and you can always place sections in quotes to group them together...
So, the following line should work:
"server:/path server:/path" /mount-point nfs ro,noauto 0 0
Try it! Wost that can happen is that the syntax fails!
(note: Try it doesn't mean reboot.... it means run the "mount -a" command and see if it works!)
Good Luck!
Dan
IT4SOHO
Business Accounts
Answer for Membership
by: it4sohoPosted on 2009-11-02 at 11:38:42ID: 25722871
I have done a little research on this and have found mixed opinions on whether autofs can do this at all.
NOTE: The syntax you show would be used in a Solaris system -- and I believe that Solaris DOES provide failover -- but not on automount, but rather on NFS.
If you think about it, the NFS mount is that part of the protocol manipulation that you would want to implement this capability into... autofs can point to local directory trees, file systems, and even ISO images. NOT just NFS mounted filesystems.
I DO know that some HA (High Availability) Linux distributions support this, but that is a niche market.
What distro are you trying to do this on?
Dan
IT4SOHO